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Myers, J, Mou* S, Chen KH, Zhuang Y.  2016.  Scanning microwave microscope imaging of micro-patterned monolayer graphene grown by chemical vapor deposition. Applied Physics Letters . 108:053101.
Fu, F-Y, Fan C-C, Qorbani M, Huang C-Y, Kuo P-C, Hwang J-S, Shu G-J, Chang S-M, Wu H-L, Wu C-I, Chen K-H, Chen L-C.  2022.  Selective CO2-to-CO photoreduction over an orthophosphate semiconductor via the direct Z-scheme heterojunction of Ag3PO4 quantum dots decorated on SnS2 nanosheets, 2022. Sustainable Energy & Fuels. 6(19):4418-4428.: The Royal Society of Chemistry AbstractWebsite

Direct Z-scheme heterojunctions are widely used for photocatalytic water splitting and CO2 reduction due to facilitating well-separated photogenerated charge carriers and spatial isolation of redox reactions. Here, using a facile two-step hydrothermal and ion-exchange method, we uniformly decorate silver orthophosphate (i.e., Ag3PO4) quantum dots with an average characteristic size of ∼10 nm over tin(iv) sulphide (i.e., SnS2) nanosheets to form a 0D/2D heterojunction. The direct Z-scheme mechanism, i.e. charge transport for efficient electron (from SnS2) and hole (from Ag3PO4) recombination, is confirmed by the following experiments: (i) ultraviolet and X-ray photoelectron spectroscopies; (ii) photodeposition of Pt and PbO2 nanoparticles on reduction and oxidation sites, respectively; (iii) in situ X-ray photoelectron spectroscopy; and (iv) electron paramagnetic resonance spectroscopy. Owing to the photoreduction properties of Ag3PO4 with orthophosphate vacancies, Z-scheme charge carrier transfer, and efficient exciton dissociation, an optimized heterojunction shows a high CO2-to-CO reduction yield of 18.3 μmol g−1 h−1 with an illustrious selectivity of ∼95% under light illumination, which is about 3.0 and 47.8 times larger than that of Ag3PO4 and SnS2, respectively. The carbon source for the CO product is verified using a 13CO2 isotopic experiment. Moreover, by tracing the peak at ∼1190 cm−1 in the dark and under light irradiation, in situ diffuse reflectance infrared Fourier transform spectroscopy demonstrates that the CO2 reduction pathway goes through the COOH* intermediate.

Liang, CH, Chen* LC, Hwang JS, Chen KH, Hung YT, Chen YF.  2002.  Selective-area growth of InN nanowires on gold-patterned Si(100) substrates. Appl. Phys. Lett.. 81:22-24.
Lim, W, Wright JS, Gila BP, Pearton SJ, Ren F, Lai WT, Chen LC, Hu MS, Chen KH.  2008.  Selective-hydrogen sensing at room temperature with Pt-coated InN nanobelts. Appl. Phys. Lett.. 93:202109-(1-3).
Chattopadhyay, S, Shi SC, Wu CT, Chen LC, Chen CH, Chen* KH.  2006.  Self selected apex angle distribution of the nanotips. Appl. Phys. Lett.. 89:143105-(1-3).
Li, CC, Chen YW, Lin RJ, Chang CC, Chen KH, H.P.Lin, Chen LC.  2011.  Self-reductive mesoporous CuOx/Fe/silicate nanocomposite as a highly active and stable catalyst for methanol reforming. Chem. Comm.. 47:9414-9416.
Kuo, CK, Hsu CW, Wu CT, Lan ZH, Mou CY, Chen CC, Yang YJ, Chen LC, Chen* KH.  2006.  Self-regulating and diameter-selective growth of GaN nanowires. Nanotechnology. 17:S332-337.
Hu, MH, Wang WM, Chen TT, Hong LS, Chen CW, C.Chen C, Chen YF, Chen KH, Chen* LC.  2006.  Sharp infrared emission from single-crystalline indium nitride nanobelts derived by guided-stream thermal chemical vapor deposition. Adv. Func. Mater.. 16:537-541.
Quadir, S, Qorbani M, Sabbah A, Wu T-S, kumar Anbalagan A, Chen W-T, Valiyaveettil SM, Thong H-T, Wang C-W, Cheng-YingChen, Lee C-H, Chen K-H, Chen L-C.  2022.  Short- and Long-Range Cation Disorder in (AgxCu1–x)2ZnSnSe4 Kesterites, 2022. Chemistry of Materials. : American Chemical Society AbstractWebsite


Chen, LC, Bhusari DM, Yang CY, Chen KH, Chuang TJ, Lin MC, Chen CK, Huang YF.  1997.  Si-Containing Crystalline Carbon Nitride Derived by Microwave Plasma-Enhanced Chemical Vapor Deposition. Thin Solid Film. 303:66-75.
Lo, HC, Das D, Hwang JS, Chen KH, Hsu CH, Chen CF, Chen LC.  2003.  SiC-capped nanotip arrays for field emission with ultralow turn-on field. Appl. Phys. Lett.. 83:1420-1422.
Chen, WC, Lien HT, Cheng TW, Su C, Chong CW, Ganguly A, Chen KH, Chen* LC.  2015.  Side Group of Poly(3-alkylthiophene)s Controlled Dispersion of Single-Walled Carbon Nanotubes for Transparent Conducting Film. ACS Appl. Mater. & Inter. . 7:4616.
Chen, KH, Bhusari DM, Wu JJ, Wei SL, Liu RL, Chen LC.  1998.  Silicon-containing Crystalline Carbon Nitride: a Novel Wide Band Gap Material. the symposium on Light Emitting Devices for Optoelectronic Applications, Electrochemical Society. :Vol98-2,417-433.
Wang, DY, Teng TS, Wu YC, Lee YC, Chen KH, Chen CH, Chang* YC, Chen* CC.  2009.  Silver-Nanoparticle-Conjugated Polypeptide Brushes for Surface-Enhanced Raman Scattering. J. Phys. Chem.. C13:13498-13504.
Liang, CK, Chang ST, Verkhoturov SV, Chen LC, Chen KH, Schweikert* EA.  2014.  SIMS methodology for probing the fate and dispersion of catalytically active molecules. Intl. J. Mass Spectrometry . 370:107-113.
Chen, HY, Chen RS, Rajan NK, Chang FC, Chen LC, Chen KH, Yang YJ, Reed MA.  2011.  Size-dependent persistent photocurrent and surface band bending in m-axial GaN nanowires. Phys. Rev. B. 84:205443.
Chen, HY, Chen RS, Chang FC, Chen* LC, Chen KH, Yang YJ.  2009.  Size-dependent photoconductivity and dark conductivity of m-axial GaN nanowires with small critical diameter. Appl. Phys. Lett.. 95:143123.
Lien, H-T, Chang Y-C, Huang C-Y, Hsu H-C, Chang S-T, Wong DP, Wang C-H, Wang C-H, Chen K-H, Chen L-C.  2021.  Solar to hydrocarbon production using metal-free water-soluble bulk heterojunction of conducting polymer nanoparticle and graphene oxide, 2021. The Journal of Chemical PhysicsThe Journal of Chemical Physics. 154(16):164707.: American Institute of Physics AbstractWebsite
Berzina, B, Trinkler L, Jakimovica D, Korsaks V, Grabis J, Steins I, Palcevskis, Bellucci S, Chen LC, Chattopadhyay S t, Chen KH.  2009.  Spectral characterization of bulk and nanostructuredaluminum nitride. J. Nanophotonics. 3:031950.
Wu, CT, Chu MW, Chen LC, Chen KH, Chen CW, Chen CH.  2010.  Spectroscopic characterizations of individual single-crystalline GaN nanowires in visible/ultra-violet regime. Micron. 41:827-832.
Mendoza-Galván*, A, Järrendahl K, Arwin H, Huang Y-F, Chen LC, Chen KH.  2009.  Spectroscopic ellipsometry analysis of silicon nanotips obtained by electron cyclotron resonance plasma etching. Applied Optics. 48:4996-5004.
Das*, D, Chen KH, Chattopadhyay S, Chen LC.  2002.  Spectroscopic studies of nitrogenated amorphous carbon films prepared by ion beam sputtering. J. Appl. Phys.. 91:4944-4955.
Dhara*, S, Sundaravel B, K.H. Chen, et al.  2004.  Spillout effect in gold nanoclusters embedded in c-Al2O3(0001) matrix. Chem. Phys. Lett.. 399:354-358.
Chen, YC, Hsu YK, Lin YG, Chen LC, Chen KH.  2012.  Spontaneous synthesis and electrochemical characterization of nanostructured MnO2 on nitrogen-incorporated carbon nanotubes. Int. J. of Electrochem..